import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:opene/app_constant.dart';
import 'package:opene/app_theme.dart';
import 'package:opene/app_utils.dart';
import 'package:opene/base/base_state.dart';
import 'package:opene/base/loading.dart';
import 'package:opene/base/scan_code.dart';
import 'package:opene/net/method/base_method.dart';
import 'package:opene/net/network_manager.dart';
import 'package:opene/net/response/base_response.dart';
import 'package:opene/ui/b2ctrailer/b2ctrailermodel.dart';
import 'package:opene/ui/returns/trailer/returnstrailersubmitscreen.dart';
import 'package:toast/toast.dart';

class ReturnsTrailerScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return ReturnsTrailerScreenPage();
  }
}

class ReturnsTrailerScreenPage extends StatefulWidget {
  @override
  _ReturnsTrailerPageState createState() => _ReturnsTrailerPageState();
}

class _ReturnsTrailerPageState extends BaseState<ReturnsTrailerScreen> {

  @override
  String setTitle({String title}) {
    return !Utils.isEmpty(title) ? title : "Trailer#";
  }

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    Future.delayed(Duration(milliseconds: 300), () {
    });
  }


  @override
  Widget getViewBinding() {
    return Padding(
      padding: const EdgeInsets.only(left: 0, top: 10, right: 0),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Container(
            margin: const EdgeInsets.only(left: 15, top: 0, right: 15, bottom: 0),
            width: double.infinity,
            child: ConstrainedBox(
              constraints: BoxConstraints(maxHeight: 35),
              child: TextField(
                controller: textEditingController,
                textInputAction: TextInputAction.search,
                onSubmitted: (String text) {
                  print('Searching for $text');
                  if (Utils.isEmpty(text)) {
                    return;
                  }
                  getLpnPhotoInfo(text);
                },
                // autofocus: true,
                decoration: InputDecoration(
                  suffixIcon: IconButton(
                    padding: EdgeInsets.all(2.0),
                    icon: Icon(
                      Icons.qr_code_scanner,
                      size: 28,
                      color: MyAppTheme.nearlyBlue,
                    ),
                    onPressed: () {
                      // requestPermissions();
                      // Utils.scanBarcode(context);
                      Navigator.of(context).push(MaterialPageRoute(builder: (context) {
                        return ScanCode();
                      })).then((text) {
                        if (text == null) {
                          return;
                        }
                        setState(() {
                          textEditingController.text = text;
                        });
                        print(text); //拿到扫描结果
                        getLpnPhotoInfo(text);
                      });
                    },
                  ),
                  border: OutlineInputBorder(
                    borderSide: BorderSide(
                      color: MyAppTheme.nearlyBlue,
                    ),
                    borderRadius: const BorderRadius.all(Radius.circular(20.0)),
                  ),
                  enabledBorder: OutlineInputBorder(
                    borderSide: BorderSide(color: MyAppTheme.nearlyBlue),
                    // 设置焦点之外的边框颜色
                    borderRadius: const BorderRadius.all(Radius.circular(20.0)),
                  ),
                  focusedBorder: OutlineInputBorder(
                    borderSide: BorderSide(color: MyAppTheme.nearlyBlue),
                    // 设置焦点时的边框颜色
                    borderRadius: const BorderRadius.all(Radius.circular(20.0)),
                  ),
                  hintText: "scan trailer#",
                  filled: true,
                  fillColor: MyAppTheme.white,
                  //隐藏下划线
                  //border: InputBorder.none,
                  hintStyle: TextStyle(color: Colors.grey),
                  contentPadding: const EdgeInsets.symmetric(vertical: 0, horizontal: 15),
                ),
                onChanged: (text) {
                  code = text;
                },
              ),
            ),
          ),
        ],
      ),
    );
  }

  void getLpnPhotoInfo(String trailer) async {
    updateHint('');
    TrailerTypeQr trailerTypeQr = new TrailerTypeQr();
    trailerTypeQr.trailer = trailer;
    trailerTypeQr.type = 6;
    String json = jsonEncode(trailerTypeQr);
    // 显示加载中对话框
    LoadingIndicator.show(context);

    BaseResponse baseResponse = await NetworkManager().request(context, Constants.appTrailer, method: BaseMethod.post, data: json);
    // hideDialogFunction();
    // 在需要的时候隐藏加载中对话框
    LoadingIndicator.hide();

    if (baseResponse.status == 200) {
      TrailerType trailerType = TrailerType.fromJson(baseResponse.data);

      Navigator.push(
        context,
        MaterialPageRoute(builder: (context) => ReturnsTrailerSubmitScreen(trailerType: trailerType)),
      ).then((value) => {
            if ((value != null) && value)
              {
                setState(() {
                  textEditingController.text = "";
                })
              }
          });
    } else {
      ToastContext().init(context);
      Toast.show(Utils.getStringisEmpty(baseResponse.msg), duration: Toast.lengthShort, gravity: Toast.bottom);
    }
  }

  @override
  void showFileUploadData(String path, int type, int position, bool isSubmit) {
    // TODO: implement showFileUploadData
  }

  @override
  void setNext() {
    if (Utils.isEmpty(textEditingController.text)) {
      ToastContext().init(context);
      Toast.show("scan trailer#", duration: Toast.lengthShort, gravity: Toast.bottom);
      return;
    }
    getLpnPhotoInfo(textEditingController.text);
  }

  @override
  void setReset() {
    setState(() {
      textEditingController.text = "";
      hint = "";
    });
  }
}

class TrailerTypeQr {
  String trailer; //车牌号
  int type = 1;

  Map<String, dynamic> toJson() {
    return {
      "trailer": this.trailer,
      "type": this.type,
    };
  } //类型 1:B2C Packing  2:B2B Packing  3:B2B FTL  4:B2B LTL 5:Transfer 6:return

}
